Picklock_RCM/bdk/libs/lvgl/lv_objx/lv_btn.h

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2020-06-26 22:17:06 +02:00
/**
* @file lv_btn.h
*
*/
#ifndef LV_BTN_H
#define LV_BTN_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#ifdef LV_CONF_INCLUDE_SIMPLE
#include "lv_conf.h"
#else
#include "../../lv_conf.h"
#endif
#if USE_LV_BTN != 0
/*Testing of dependencies*/
#if USE_LV_CONT == 0
#error "lv_btn: lv_cont is required. Enable it in lv_conf.h (USE_LV_CONT 1) "
#endif
#include "lv_cont.h"
#include "../lv_core/lv_indev.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/* Button states
* It can be used not only by buttons but other button-like objects too*/
enum
{
LV_BTN_STATE_REL,
LV_BTN_STATE_PR,
LV_BTN_STATE_TGL_REL,
LV_BTN_STATE_TGL_PR,
LV_BTN_STATE_INA,
LV_BTN_STATE_NUM,
};
typedef uint8_t lv_btn_state_t;
enum
{
LV_BTN_ACTION_CLICK,
LV_BTN_ACTION_PR,
LV_BTN_ACTION_LONG_PR,
LV_BTN_ACTION_LONG_PR_REPEAT,
LV_BTN_ACTION_NUM,
};
typedef uint8_t lv_btn_action_t;
/*Data of button*/
typedef struct
{
lv_cont_ext_t cont; /*Ext. of ancestor*/
/*New data for this type */
lv_action_t actions[LV_BTN_ACTION_NUM];
lv_style_t * styles[LV_BTN_STATE_NUM]; /*Styles in each state*/
lv_btn_state_t state; /*Current state of the button from 'lv_btn_state_t' enum*/
int idx;
#if LV_BTN_INK_EFFECT
uint16_t ink_in_time; /*[ms] Time of ink fill effect (0: disable ink effect)*/
uint16_t ink_wait_time; /*[ms] Wait before the ink disappears */
uint16_t ink_out_time; /*[ms] Time of ink disappearing*/
#endif
uint8_t toggle :1; /*1: Toggle enabled*/
uint8_t long_pr_action_executed :1; /*1: Long press action executed (Handled by the library)*/
} lv_btn_ext_t;
/*Styles*/
enum {
LV_BTN_STYLE_REL,
LV_BTN_STYLE_PR,
LV_BTN_STYLE_TGL_REL,
LV_BTN_STYLE_TGL_PR,
LV_BTN_STYLE_INA,
};
typedef uint8_t lv_btn_style_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a button objects
* @param par pointer to an object, it will be the parent of the new button
* @param copy pointer to a button object, if not NULL then the new object will be copied from it
* @return pointer to the created button
*/
lv_obj_t * lv_btn_create(lv_obj_t * par, const lv_obj_t * copy);
/*=====================
* Setter functions
*====================*/
/**
* Enable the toggled states. On release the button will change from/to toggled state.
* @param btn pointer to a button object
* @param tgl true: enable toggled states, false: disable
*/
void lv_btn_set_toggle(lv_obj_t * btn, bool tgl);
/**
* Set the state of the button
* @param btn pointer to a button object
* @param state the new state of the button (from lv_btn_state_t enum)
*/
void lv_btn_set_state(lv_obj_t * btn, lv_btn_state_t state);
/**
* Toggle the state of the button (ON->OFF, OFF->ON)
* @param btn pointer to a button object
*/
void lv_btn_toggle(lv_obj_t * btn);
/**
* Set a function to call when a button event happens
* @param btn pointer to a button object
* @param action type of event form 'lv_action_t' (press, release, long press, long press repeat)
*/
void lv_btn_set_action(lv_obj_t * btn, lv_btn_action_t type, lv_action_t action);
/**
* Set the layout on a button
* @param btn pointer to a button object
* @param layout a layout from 'lv_cont_layout_t'
*/
static inline void lv_btn_set_layout(lv_obj_t * btn, lv_layout_t layout)
{
lv_cont_set_layout(btn, layout);
}
/**
* Enable the horizontal or vertical fit.
* The button size will be set to involve the children horizontally or vertically.
* @param btn pointer to a button object
* @param hor_en true: enable the horizontal fit
* @param ver_en true: enable the vertical fit
*/
static inline void lv_btn_set_fit(lv_obj_t * btn, bool hor_en, bool ver_en)
{
lv_cont_set_fit(btn, hor_en, ver_en);
}
/**
* Set time of the ink effect (draw a circle on click to animate in the new state)
* @param btn pointer to a button object
* @param time the time of the ink animation
*/
void lv_btn_set_ink_in_time(lv_obj_t * btn, uint16_t time);
/**
* Set the wait time before the ink disappears
* @param btn pointer to a button object
* @param time the time of the ink animation
*/
void lv_btn_set_ink_wait_time(lv_obj_t * btn, uint16_t time);
/**
* Set time of the ink out effect (animate to the released state)
* @param btn pointer to a button object
* @param time the time of the ink animation
*/
void lv_btn_set_ink_out_time(lv_obj_t * btn, uint16_t time);
/**
* Set a style of a button.
* @param btn pointer to button object
* @param type which style should be set
* @param style pointer to a style
* */
void lv_btn_set_style(lv_obj_t * btn, lv_btn_style_t type, lv_style_t *style);
/*=====================
* Getter functions
*====================*/
/**
* Get the current state of the button
* @param btn pointer to a button object
* @return the state of the button (from lv_btn_state_t enum)
*/
lv_btn_state_t lv_btn_get_state(const lv_obj_t * btn);
/**
* Get the toggle enable attribute of the button
* @param btn pointer to a button object
* @return ture: toggle enabled, false: disabled
*/
bool lv_btn_get_toggle(const lv_obj_t * btn);
/**
* Get the release action of a button
* @param btn pointer to a button object
* @return pointer to the release action function
*/
lv_action_t lv_btn_get_action(const lv_obj_t * btn, lv_btn_action_t type);
/**
* Get the layout of a button
* @param btn pointer to button object
* @return the layout from 'lv_cont_layout_t'
*/
static inline lv_layout_t lv_btn_get_layout(const lv_obj_t * btn)
{
return lv_cont_get_layout(btn);
}
/**
* Get horizontal fit enable attribute of a button
* @param btn pointer to a button object
* @return true: horizontal fit is enabled; false: disabled
*/
static inline bool lv_btn_get_hor_fit(const lv_obj_t * btn)
{
return lv_cont_get_hor_fit(btn);
}
/**
* Get vertical fit enable attribute of a container
* @param btn pointer to a button object
* @return true: vertical fit is enabled; false: disabled
*/
static inline bool lv_btn_get_ver_fit(const lv_obj_t * btn)
{
return lv_cont_get_ver_fit(btn);
}
/**
* Get time of the ink in effect (draw a circle on click to animate in the new state)
* @param btn pointer to a button object
* @return the time of the ink animation
*/
uint16_t lv_btn_get_ink_in_time(const lv_obj_t * btn);
/**
* Get the wait time before the ink disappears
* @param btn pointer to a button object
* @return the time of the ink animation
*/
uint16_t lv_btn_get_ink_wait_time(const lv_obj_t * btn);
/**
* Get time of the ink out effect (animate to the releases state)
* @param btn pointer to a button object
* @return the time of the ink animation
*/
uint16_t lv_btn_get_ink_out_time(const lv_obj_t * btn);
/**
* Get style of a button.
* @param btn pointer to button object
* @param type which style should be get
* @return style pointer to the style
* */
lv_style_t * lv_btn_get_style(const lv_obj_t * btn, lv_btn_style_t type);
/**********************
* MACROS
**********************/
#endif /*USE_LV_BUTTON*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_BTN_H*/